CN2843737Y - Special chuck of centering drill - Google Patents

Special chuck of centering drill Download PDF

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Publication number
CN2843737Y
CN2843737Y CN 200520032676 CN200520032676U CN2843737Y CN 2843737 Y CN2843737 Y CN 2843737Y CN 200520032676 CN200520032676 CN 200520032676 CN 200520032676 U CN200520032676 U CN 200520032676U CN 2843737 Y CN2843737 Y CN 2843737Y
Authority
CN
China
Prior art keywords
cone
sleeve
drill
screw
cone body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200520032676
Other languages
Chinese (zh)
Inventor
刘建忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENAN ZHONGZHOU GROUP CO Ltd
Original Assignee
HENAN ZHONGZHOU GROUP CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HENAN ZHONGZHOU GROUP CO Ltd filed Critical HENAN ZHONGZHOU GROUP CO Ltd
Priority to CN 200520032676 priority Critical patent/CN2843737Y/en
Application granted granted Critical
Publication of CN2843737Y publication Critical patent/CN2843737Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model discloses a special chuck of a centering drill, which comprises a cone body, wherein the head portion of the cone body is provided with a drill bit fixing cavity, the center of the cone body is hollow, and the head portion of a cone body hollow cavity is sheathed with a sleeve barrel; the tail end of the sleeve barrel is provided with a telescopic regulating device, the drill bit fixing cavity is arranged on the head portion of the sleeve barrel, and the drill bit fixing cavity is provided with a centering drill bit locking device; a locking device is also arranged between the sleeve barrel and the cone body, the outer edge of the head portion of the cone body and the end surface thereof are sheathed with positioning sleeves which are movably matched with the head portion of the cone body. When the dimension of a centering drill is reached, the end portions of the positioning sleeves contact machining parts and the positioning sleeves rotate with the machining parts on the head portion of the cone body under the action of frictional force. Therefore, the dimension of a centering hole can be controlled effectively. The special chuck of a centering drill has the advantages that structure is simple, and the utility model is almost as big as a conventional drill chuck; cost is low, and the cost of the utility model is equal to that of a conventional drill chuck; the utility model is convenient to operate, and regulation can be accomplished in front of a machine tool; precision is high, and dimensional tolerance can be controlled below 0.05.

Description

The centre drill special fixture
Technical field
The utility model relates to the centre drill special fixture that use in a kind of machine tool processing centre of location hole.
Background technology
Axial workpiece often adopts two ends centre bores location in process, therefore, whether the size of centre bore, the depth be even, will directly influence follow-up accurate processing.Especially the modern automation degree is more and more higher, can't satisfy processing request.In addition, some parts have strict demand to quenching length, and centre bore inhomogeneous can't guarantee requirement.
Conventional centre drill anchor clamps, self can't regulate, and the size of centre bore mainly depends on the precision of equipment self, the clamping error of part in clamping process, and lathe self error, operator estimate error etc., all will influence dimensional requirement.Special-purpose centre-hole machine costs an arm and a leg, and for the blank material, also has the clamping error.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective that conventional centre drill anchor clamps can't be regulated, and the size of centre bore can be effectively controlled.
For achieving the above object, the utility model adopts following technical scheme: a kind of centre drill special fixture, comprise cone, cone head has the drill bit lock chamber, described cone center is a cavity, cone cavity head cover is sleeved, the sleeve afterbody is provided with extension adjustment device, described drill bit lock chamber is opened in sleeve head, drill bit lock chamber place is provided with the center bit locking device, also be provided with locking device between sleeve and the cone, described cone head outer rim and end face suit positioning sleeve thereof, positioning sleeve cooperates with cone head is movable.
Described sleeve has screwed hole of centre, and described extension adjustment device is formed by the screw that is positioned at the cone afterbody with the leading screw of screw threaded engagement, and the leading screw other end cooperates with bush whorl, and screw stretches out the cone tail end and its outer surface is provided with dial.
Described center bit locking device is the screw that is positioned at sleeve drill bit lock chamber wall place, and the locking device between described sleeve and the cone is the screw that is positioned at the cone head outside; Be provided with bearing between described positioning sleeve and the cone head.
Adopt technical scheme described in the utility model, because cone cavity head cover is sleeved, the drill bit lock chamber is opened in sleeve head, cone head outer rim and end face suit positioning sleeve thereof, positioning sleeve cooperates with cone head is movable, like this center bit is installed in the drill bit lock chamber of sleeve head and carries out work, when centre drill reaches desired size, the positioning sleeve end contacts with processing parts, positioning sleeve rotates at cone head with processing parts under the effect of frictional force, thereby the size of centre bore can be effectively controlled.The sleeve afterbody is provided with extension adjustment device, the convenient position of regulating center bit, and then the size that can regulate centre bore.This centre drill special fixture is simple in structure, and the drill chuck of size and routine is similar; Cost is low, is equivalent to the cost of conventional drill chuck; Easy to operate, before lathe, can finish adjusting; The precision height, dimensional tolerance can be controlled in 0.05.
Description of drawings
Accompanying drawing is depicted as structural representation of the present utility model.
The specific embodiment
As shown in drawings, the cone 1 of this centre drill special fixture adopts the 3# Morse's taper, be connected with machine tool chief axis, its center is a cavity, cone 1 cavity head overlaps sleeved 5, sleeve 5 has screwed hole of centre, be positioned at the screw 3 of cone 1 afterbody and form extension adjustment device with the leading screw 4 of screw 3 threaded engagement, leading screw 4 other ends and sleeve 5 threaded engagement, screw 3 stretches out cone 1 tail end and its outer surface is provided with dial 2, by rotation screw 3, drives leading screw 4 and rotates together, move forward and backward thereby drag sleeve 5, reach the purpose of adjusting.Sleeve 5 heads have drill bit lock chamber 7, the spinning lock-screw 8 at drill bit lock chamber wall 7 places, spinning lock-screw 10 between the sleeve 5 and the cone 1 head outside, cone 1 external edge of head and end face suit positioning sleeve 6 thereof are provided with bearing 9 between positioning sleeve 6 and cone 1 head.
Unclamp screw 10, rotation screw 3 makes sleeve 5 protruding long enoughs (making screw 8 outside positioning sleeve 6), and clamping center bit 7 ' clamps with screw 8.After regulating size, lock-screw 10.When centre bore reaches desired processing dimension, positioning sleeve 6 will contact with part end face, together rotate with part under the effect of mill sassafras power, play positioning action, thus the size in control centre hole.When size need be adjusted, only need unclamp lock-screw 10, rotation screw 3, the numeral of dial 2 rotations is corresponding with the length that sleeve 5 stretches, and can intuitively reflect the length of adjusting, when reaching the size that needs, lock-screw 10 gets final product, and the position adjustments of center bit is very convenient.

Claims (3)

1, a kind of centre drill special fixture, comprise cone, cone head has the drill bit lock chamber, it is characterized in that: described cone center is a cavity, and cone cavity head cover is sleeved, the sleeve afterbody is provided with extension adjustment device, described drill bit lock chamber is opened in sleeve head, and drill bit lock chamber place is provided with the center bit locking device, also is provided with locking device between sleeve and the cone, described cone head outer rim and end face suit positioning sleeve thereof, positioning sleeve cooperates with cone head is movable.
2, centre drill special fixture as claimed in claim 1, it is characterized in that: described sleeve has screwed hole of centre, described extension adjustment device is formed by the screw that is positioned at the cone afterbody with the leading screw of screw threaded engagement, the leading screw other end cooperates with bush whorl, and screw stretches out the cone tail end and its outer surface is provided with dial.
3, centre drill special fixture as claimed in claim 1 or 2 is characterized in that: described center bit locking device is the screw that is positioned at sleeve drill bit lock chamber wall place, and the locking device between described sleeve and the cone is the screw that is positioned at the cone head outside; Be provided with bearing between described positioning sleeve and the cone head.
CN 200520032676 2005-11-16 2005-11-16 Special chuck of centering drill Expired - Fee Related CN2843737Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520032676 CN2843737Y (en) 2005-11-16 2005-11-16 Special chuck of centering drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520032676 CN2843737Y (en) 2005-11-16 2005-11-16 Special chuck of centering drill

Publications (1)

Publication Number Publication Date
CN2843737Y true CN2843737Y (en) 2006-12-06

Family

ID=37485693

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520032676 Expired - Fee Related CN2843737Y (en) 2005-11-16 2005-11-16 Special chuck of centering drill

Country Status (1)

Country Link
CN (1) CN2843737Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102848278A (en) * 2012-08-10 2013-01-02 浙江腾云制冷科技有限公司 Drill bit positioning mechanism for pipe burr grinding apparatus
CN102848277A (en) * 2012-08-10 2013-01-02 浙江腾云制冷科技有限公司 Pipe burr grinder
CN102848279A (en) * 2012-08-10 2013-01-02 浙江腾云制冷科技有限公司 Full-automatic bidirectional pipe interior-exterior angle chamfering machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102848278A (en) * 2012-08-10 2013-01-02 浙江腾云制冷科技有限公司 Drill bit positioning mechanism for pipe burr grinding apparatus
CN102848277A (en) * 2012-08-10 2013-01-02 浙江腾云制冷科技有限公司 Pipe burr grinder
CN102848279A (en) * 2012-08-10 2013-01-02 浙江腾云制冷科技有限公司 Full-automatic bidirectional pipe interior-exterior angle chamfering machine
CN102848279B (en) * 2012-08-10 2015-05-20 浙江腾云制冷科技有限公司 Full-automatic bidirectional pipe interior-exterior angle chamfering machine

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee